Sildenafil: two decades of benefits or risks?

A Placebo-Controlled, Multicenter, Randomized, Double-Blind, Flexible-Dose,Two-Way Crossover Study to Evaluate the Efficacy and Safety of Sildenafil in Men With Traumatic Spinal Cord Injury and Erectile Dysfunction

(2016) Sureyya Ergin et al.   JOURNAL OF SPINAL CORD MEDICINE

The use of phosphodiesterase 5 inhibitors with concomitant medications

(2014) G. Corona et al.   JOURNAL OF ENDOCRINOLOGICAL INVESTIGATION

Recreational Use of Phosphodiesterase Type 5 Inhibitors by Healthy Young Men

(2010) Amado Bechara et al.   Journal of Sexual Medicine

Estudio prospectivo para valorar el impacto del sildenafilo 50 mg/día durante 28 días en pacientes con disfunción eréctil y sintomatologíasecundaria a hiperplasia benigna de próstata

(2009) Raúl Vozmediano Chicharro et al.   Revista Internacional de Andrologia

Self-esteem, confidence and relationship satisfaction in men with erectile dysfunction: a randomized, parallel-group, double-blind, placebo-controlled study of sildenafil in Mexico

(2008) E Zonana Farca et al.   INTERNATIONAL JOURNAL OF IMPOTENCE RESEARCH

An Open‐Label, Multicenter, Flexible Dose Study to Evaluate the Efficacy and Safety of Viagra® (Sildenafil Citrate) in Korean Men with Erectile Dysfunction and Arterial Hypertension who are Taking Antihypertensive Agents

(2008) Hyun Jun Park et al.   Journal of Sexual Medicine

Evaluation of the Safety and Efficacy of Sildenafil Citrate for Erectile Dysfunction in Men With Multiple Sclerosis: A Double-Blind, Placebo Controlled, Randomized Study

(2008) Mohammad Reza Safarinejad   JOURNAL OF UROLOGY

Prognostic factors predicting successful response to sildenafil after radical cystoprostatectomy

(2008) Magdy S. El-Bahnasawy et al.   SCANDINAVIAN JOURNAL OF UROLOGY AND NEPHROLOGY